Sharon Burke contacted the website to confirm a son for Isabella the eldest daughter of this family:

I’m a descendant of Isabella Mutch (daughter of James Mutch J59). My gt grand-father, Donald Mutch Aird (1862-1934) was Isabella’s illegitimate son, born in Kineller, Aberdeenshire. Donald Aird (1840-1920) was the father, evidenced by DNA.

My gt grandfather Donald Mutch Aird (he was always known as this, acknowledging his mother and father) migrated to Australia in the 1880s and married my Gt grandmother, who was of Danish heritage.

Thanks for adding another peice to the jigsaw Sharon